You can also reduce the quality of the WAVs, e.g. mono sound, or a lower sampling rate. Obviously that also makes them sound worse.
Streaming OGG/MP3 means you use less memory, but it's also much more CPU intensive than playing a plain WAV file, so on low-end machines it may still be problematic.
Streaming OGG/MP3 means you use less memory, but it's also much more CPU intensive than playing a plain WAV file, so on low-end machines it may still be problematic.